PopDay2

Members of the Egyptian army pray with protesters in Cairo's Tahrir Square on Feb. 11, 2011, the day that President Hosni Mubarak bowed to popular pressure and agreed to step down. In 2011, youth-driven uprisings toppled autocratic regimes in Tunisia, Egypt and Libya.

Members of the Egyptian army pray with protesters in Cairo's Tahrir Square on Feb. 11, 2011, the day that President Hosni Mubarak bowed to popular pressure and agreed to step down. In 2011, youth-driven uprisings toppled autocratic regimes in Tunisia, Egypt and Libya. (Rick Loomis / Los Angeles Times)

Members of the Egyptian army pray with protesters in Cairo's Tahrir Square on Feb. 11, 2011, the day that President Hosni Mubarak bowed to popular pressure and agreed to step down. In 2011, youth-driven uprisings toppled autocratic regimes in Tunisia, Egypt and Libya.Rick Loomis / Los Angeles Times